Gel pad with integral shape retainer

Abstract

A gel pad assembly includes a flexible gel pad and an adjustable shape retainer integral with the gel pad. A flexible first outer wall cooperates with a flexible inner wall to form a first chamber. A gel is located within the first chamber. A flexible second outer wall cooperates with the inner wall to form a second chamber coextensive with the first chamber. The integral shape retainer is located within the second chamber and is selectively adjustable between a flexible condition wherein the flexible walls are conformable to a variety of desired shapes and a rigid condition wherein the flexible walls are retained in a selected one of the desired shapes. Preferred embodiments of the shape retainer include a vacuum activated bean bag, a plurality of pressurizable chambers, a thermally deformable plastic sheet, and an array of pivot elements which are mechanically clamped together.

Dependencies are inferred from the claim text.